Moreover, intratumoral injections of AdSVP-Flt3L significantly inhibited in vivo tumor growth and increased the levels of Flt3L in both the blood and tumor tissues of the mice in which mICCN-4 and Hep53.4 cells were subcutaneously implanted (Fig. 3a, b and Supplementary Fig. 4g). This evidence concerns the gene FLT3LG and neoplasm.